Where can I find photos on my Moto X Pure Edition?

I had to reboot my phone while hiking in an area with no cell/wifi signals. I took a lot of pictures after that time. When I searched both the Gallery and Google Photos, I could not find any of the pictures taken after I rebooted. I could see then when I went to post a pic on Facebook, but only there. How can I move those pictures from where ever they are hidden to the Gallery or Google Photos? Any help would be appreciated.